If you are giving a presentation it can be easier to present CommCare using a tool on your computer. This is also sometimes useful for testing your application. There are several ways to do this.

The CommCareHQ Emulator: When you go to "deploy" on your application you will see an option for "Preview in Emulator." You must have Java installed and it will take several minutes to load, but will give a good approximation to how the app will look like on a J2ME/Java/NOKIA-style phone.